Mophead clamping structure



Oct. 16, 1951 M. SEE MANN MOP HEAD CLAMPING STRUCTURE Filed June 24,1949 Inventor 1 mm ZZEZ Seema 7L 7?/ Attorney Patented Oct. 16, 1951Manuel Seemann, Cleveland, Ohio Application June 24, 1949, Serial No.101,134

3 Claims.

This invention relates to a novel clamping structure for detachablyclamping mop material to a handle and which is particularly intended andadapted for holding mop yarns employed in the application of bitumen inthe roofing and waterproofing trades and which is the most difficulttype of yarn or mop material to clamp to a mop handle.

Another object of the invention is to provide a clamp structure by theuse of which yarn or mop material may be applied to the clamp structurewhen the original mop material wears down to an extent making itimpractical to use further and which may be accomplished withoutremoving the original yarn or mop material.

Another object of the invention is to provide a mop head clamp having nosharp edges which will cut or wear the yarn adjacent the clampstructure.

Still a further object of the invention is to provide a clamp structurehaving an adjustable clamping head which is readily removable so thatadditional yarn may be added to a mop I used for applying bitumen whilethe mop material is hot, and which will afford ample room, with theadjustable clamp removed, for adding the new yarn without danger of thenew yarn catching on the sticky coating of the old mop material andwhereby the yarn may be much more effectively clamped than if appliedWhile the mop is cold.

Still a further and particular important object of the present inventionis to provide a clamp structure having a single readily detachable nutand bolt which can be quickly and easily replaced when the threadsbecome worn or damaged by contact with the bitumen, which frequentlyoccurs, at a small fraction of the cost of replacing the entire mop asis conventionally required.

, Various other objects and advantages of the invention will hereinafterbecome more fully apparent from the following description of thedrawing, illustrating a presently preferred embodiment thereof, andwherein:

Figure 1 is a side elevational view, partly in vertical section showingthe novel clamp structure with yarn clamped therein and with a portionof a handle shown secured thereto;

Figure 2 is an edge elevational view of the same parts, taken atright-angles to Figure 1;

Figure 3 is a cross sectional view of the clamp structure, with the mopmaterial omitted, taken substantially along a plane as indicated by theline 3-3 of Figure 1;

Fi ure 41s a fragmentary longitudinal sectional I 2 view of the clampstructure, taken substantially along a plane as indicated by the line4-4 of Figure 3; and V Figure 5 is an exploded perspective view, partially fragmentary, of portions of the clamp structure;

Referring more specifically to thedrawing, the novel mop head clampingstructure constituting the invention is designated generally 6 in itsentirety and includes an elongated socket member I having an upwardlyopening end adapted to receive an end 9 of an elongated mop handle andwhich is secured therein by one or more fastenings l0 which extenddiametrically through the socket 1 and handle end 9. The end of thehandle 9 which is disposed in the socket I is spaced a considerabledistance from the bottom wall 8 of said socket which is provided with anopening ll. r I

An elongated, substantially U-shaped bail or yoke I2 is secured to thesocket I and projects longitudinally from its bottom end 8. Theterminals of the substantially parallel legs I 3 of the bail or yoke I2straddle the socket 1, adjacent its bottom 8 and are secured thereto inany suitable manner as by welding as indicated at I4. The arcuate outerportion 15 of the bail I2 is spaced a substantial distance from thebottom 8 and forms a stationary clamping element or jaw.

A movable clamping element or jaw, designated generally [6, is slidablyand removably mounted in the bail l2 for movement longitudinally thereoftoward and away from the stationary jaw portion'l5 and comprises anelongated plate H, as best seen in Figures 3 and 5, having arcuate orsubstantially semicircular notches 18 in the ends thereof and which areadapted to slidably engage the adjacent portions of the bail legs I3.One side of the plate 11, constituting its upper side, is provided withan elongated web l9 which may be formed integral therewith or suitablysecured thereto. The web I9 extends longitudinally of the plate ll,between the notches l8 and is equally spaced from the two side edges ofsaid plate. The web I9 is provided with an outwardly opening notch 20intermediate of its ends.

An elongated feed screw 2| has a head 22 at one end thereof and which ispreferably circular in cross section and a portion of which is adaptedto be received in the web notch 20. The outer end of the head 22 isprovided with an outwardly opening slot or kerf 23 which extendsdiametrically thereacross and which is adapted to receive the portion ofthe web l9 disposed beneath the notch 20 for non-rotatably connectingthe screw 2| to the jaw I6 when the web I9 is in engagement with thekerf 23. The screw 2| carries a nut 24.

To assemble the screw 2|, nut 24 and adjustable clamping jaw I6 on theremainder of the clamping structure 6, the nut 24 may be initiallyadvanced on the screw 2| to a position adjacent the head 22 after whichthe threaded end of the screw is inserted into the socket I through itsopening II which is sized to slidably receive the screw 2| and So as toposition the screw head 22 adjacent the socket 1 and remote to thestationary clamping jaw I5 of the bail I2. Thereafter and preferablybefore the movable clamping jaw I6 is applied, the yarn or mop material25 is inserted through the bail or yoke I2 and with the intermediateportion thereof disposed adjacent the outer end of said bail. With thescrew 2| retracted so that its head 22 is disposed adjacent the notch I,the movable clamping jaw I6 can be inserted into the bail I2 and thenswung to a position transversely thereof and so that the notches I8willslidably engage the inner halves of the bail legs I3, as seen inFigure 3 and will retain the plate in a position with its plane atsubstantially a right angle to the longitudinal axis of the bail I2. Thescrew 2| can then be moved downwardly of the bail I2 for engaging itshead 22 in the notch and its kerf 23 with the web I9, as previouslydescribed and as best illustrated in Figures 1 and 4. The screw 2| willthus be held against rotation relatively to the socket 1 and bail |2sothat by turning the nut 24 in a direction to move it away from thehead 23, said nut will exert a pressure against the socket bottom 8 forfeeding the screw 2| outwardly thereof for advancing the jaw I6 towardthe stationary jaw I5 for clamping the intermediate portion of the yarn25 between said jaws I5 and IS. The yarn 25 is of the type for use inthe roofing or waterproofing trade and in what is known as a flashingmop, said yarn being applied in skeins and varying from two to fiveskeins ordinarily.

By backing off the nut 24 toward the screw head 22, the movable jaw IEcan be removed and additional yarn 2 5 applied when required, withoutremoving the old yarn and after which the movable clamping jaw' I6 canbe replaced and advanced into a clamping position by the screw 2| andnut 24, as previously described. The presbe quickly and easily removedand replaced at a very small fraction of the cost of replacing theentire mop.

Various modifications and changes are contemplated and may obviously beresorted to, without departing from the spirit or scope of the inventionas hereinafter defined by the appended claims.

I claim as my invention:

1. A mop head clamp comprising an elongated mop handle receiving sockethaving a bottom provided with an opening, an elongated substantiallyU-shaped bail having substantially parallel legs, the terminals of saidlegs straddling said socket adjacent its bottom and being securedthereto, said bail projecting from the bottom end of the socket andlongitudinally thereof, the intermediate portion of said bail beingspaced a substantial distance from the socket bottom and defining astationary clamping jaw, a movable clamping jaw slidably and detachablymounted in said bail and comprising a plate having outwardly openingnotches in the ends thereof slidably engaging the legs of the bail whensaid plate is disposed transversely therebetween, said movable jawincluding a web projecting from one side of said plate and disposedperpendicular thereto, a feed screw loosely engaging the opening of saidsocket and having a head extending into the bail and provided with akerf detachably engaging said web for detachably and nonrotatablyconnecting the feed screw and movable jaw, and a nut mounted on saidfeed screw for bearing engagement with the outer side of the socketbottom for advancing the feed screw outwardly of said socket when saidnut is turned in a direction away from the screw head for displacing themovable clamping jaw toward the stationary clamping jaw, said bail beingadapted to contain mop material disposed betweenthe stationary andmovable clamping jaws and clamped in the bail thereby.

2. A mop clamp as in claim 1, the distance between said bail legs beingsubstantially less than the distance between the socket bottom andstationary clamping jaw. I v V 3. A mop clamp as in claim 1', said webbeing disposed longitudinally of the plate and having a notch in itsouter edge for detachably receiving the screw head. MANUEL SEEMANN.

REFERENCES CITED I The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

